//
//  LYDeviceInfo.m
//  rrlWallet
//
//  Created by Gordon on 2017/12/26.
//  Copyright © 2017年 Gordon. All rights reserved.
//

#import "LYDeviceInfo.h"
#import <ifaddrs.h>
#import <arpa/inet.h>
#import "sys/utsname.h"
#import <AdSupport/AdSupport.h>

#import <ifaddrs.h>
#import <arpa/inet.h>
#import <net/if.h>

#define IOS_CELLULAR    @"pdp_ip0"
#define IOS_WIFI        @"en0"
#define IOS_VPN         @"utun0"
#define IP_ADDR_IPv4    @"ipv4"
#define IP_ADDR_IPv6    @"ipv6"

@implementation LYDeviceInfo

+ (NSString *)getSystemVersion {
    return [[UIDevice currentDevice] systemVersion];
}

+ (NSString *)getPhoneName {
    return [self deviceVersion];
}

+ (NSString *)getPhoneNickName {
    return [[UIDevice currentDevice] name];
}

+ (BOOL)isIPad {
    NSString *phoneName = [self getPhoneName];
    if ([phoneName containsString:@"iPad"]) {
        return YES;
    }
    return NO;
}

+ (NSString *)getIDFA {
    return [[[ASIdentifierManager sharedManager] advertisingIdentifier] UUIDString];
}

+ (NSString *)deviceVersion {
    // 需要#import "sys/utsname.h"
    struct utsname systemInfo;
    uname(&systemInfo);
    NSString *deviceString = [NSString stringWithCString:systemInfo.machine encoding:NSUTF8StringEncoding];
    //iPhone
    if ([deviceString isEqualToString:@"iPhone1,1"]) return @"iPhone 1G";
    if ([deviceString isEqualToString:@"iPhone1,2"]) return @"iPhone 3G";
    if ([deviceString isEqualToString:@"iPhone2,1"]) return @"iPhone 3GS";
    if ([deviceString isEqualToString:@"iPhone3,1"]) return @"iPhone 4";
    if ([deviceString isEqualToString:@"iPhone3,2"]) return @"Verizon iPhone 4";
    if ([deviceString isEqualToString:@"iPhone4,1"]) return @"iPhone 4S";
    if ([deviceString isEqualToString:@"iPhone5,1"]) return @"iPhone 5";
    if ([deviceString isEqualToString:@"iPhone5,2"]) return @"iPhone 5";
    if ([deviceString isEqualToString:@"iPhone5,3"]) return @"iPhone 5C";
    if ([deviceString isEqualToString:@"iPhone5,4"]) return @"iPhone 5C";
    if ([deviceString isEqualToString:@"iPhone6,1"]) return @"iPhone 5S";
    if ([deviceString isEqualToString:@"iPhone6,2"]) return @"iPhone 5S";
    if ([deviceString isEqualToString:@"iPhone7,1"]) return @"iPhone 6 Plus";
    if ([deviceString isEqualToString:@"iPhone7,2"]) return @"iPhone 6";
    if ([deviceString isEqualToString:@"iPhone8,1"]) return @"iPhone 6s";
    if ([deviceString isEqualToString:@"iPhone8,2"]) return @"iPhone 6s Plus";
    if ([deviceString isEqualToString:@"iPhone8,4"]) return @"iPhone SE";
    if ([deviceString isEqualToString:@"iPhone9,1"]) return @"iPhone 7";
    if ([deviceString isEqualToString:@"iPhone9,2"]) return @"iPhone 7 Plus";
    if ([deviceString isEqualToString:@"iPhone10,1"]) return @"iPhone 8";
    if ([deviceString isEqualToString:@"iPhone10,2"]) return @"iPhone 8 Plus";
    if ([deviceString isEqualToString:@"iPhone10,3"]) return @"iPhone X";
    if ([deviceString isEqualToString:@"iPhone10,6"]) return @"iPhone X";
    if ([deviceString isEqualToString:@"x86_64"]) return @"x86_64Simulator";
    return deviceString;
}

+ (BOOL)isSimulator {
    return [[self deviceVersion] isEqualToString:@"x86_64Simulator"];
}

+ (BOOL)isIphoneX {
    return [[self deviceVersion] isEqualToString:@"iPhone X"];
}

#pragma mark - 获取设备当前网络IP地址

+ (NSString *)getIPAddress; {
    BOOL isIPv4 = YES;
    NSArray *searchArray = isIPv4 ?
        @[IOS_VPN @"/" IP_ADDR_IPv4, IOS_VPN @"/" IP_ADDR_IPv6, IOS_WIFI @"/" IP_ADDR_IPv4, IOS_WIFI @"/" IP_ADDR_IPv6, IOS_CELLULAR @"/" IP_ADDR_IPv4, IOS_CELLULAR @"/" IP_ADDR_IPv6] :
        @[IOS_VPN @"/" IP_ADDR_IPv6, IOS_VPN @"/" IP_ADDR_IPv4, IOS_WIFI @"/" IP_ADDR_IPv6, IOS_WIFI @"/" IP_ADDR_IPv4, IOS_CELLULAR @"/" IP_ADDR_IPv6, IOS_CELLULAR @"/" IP_ADDR_IPv4];

    NSDictionary *addresses = [self getIPAddresses];
    //    NSLog(@"addresses: %@", addresses);

    __block NSString *address;
    [searchArray enumerateObjectsUsingBlock:^(NSString *key, NSUInteger idx, BOOL *stop) {
        address = addresses[key];
        //筛选出IP地址格式
        if ([self isValidatIP:address]) *stop = YES;
    }];
    return address ? address : @"0.0.0.0";
}

+ (BOOL)isValidatIP:(NSString *)ipAddress {
    if (ipAddress.length == 0) {
        return NO;
    }
    NSString *urlRegEx = @"^([01]?\\d\\d?|2[0-4]\\d|25[0-5])\\."
                         "([01]?\\d\\d?|2[0-4]\\d|25[0-5])\\."
                         "([01]?\\d\\d?|2[0-4]\\d|25[0-5])\\."
                         "([01]?\\d\\d?|2[0-4]\\d|25[0-5])$";

    NSError *error;
    NSRegularExpression *regex = [NSRegularExpression regularExpressionWithPattern:urlRegEx options:0 error:&error];

    if (regex != nil) {
        NSTextCheckingResult *firstMatch = [regex firstMatchInString:ipAddress options:0 range:NSMakeRange(0, [ipAddress length])];

        if (firstMatch) {
            NSRange resultRange = [firstMatch rangeAtIndex:0];
            NSString *result = [ipAddress substringWithRange:resultRange];
            //输出结果
            NSLog(@"%@", result);
            return YES;
        }
    }
    return NO;
}

+ (NSDictionary *)getIPAddresses {
    NSMutableDictionary *addresses = [NSMutableDictionary dictionaryWithCapacity:8];

    // retrieve the current interfaces - returns 0 on success
    struct ifaddrs *interfaces;
    if (!getifaddrs(&interfaces)) {
        // Loop through linked list of interfaces
        struct ifaddrs *interface;
        for (interface = interfaces; interface; interface = interface->ifa_next) {
            if (!(interface->ifa_flags & IFF_UP) /* || (interface->ifa_flags & IFF_LOOPBACK) */ ) {
                continue; // deeply nested code harder to read
            }
            const struct sockaddr_in *addr = (const struct sockaddr_in *) interface->ifa_addr;
            char addrBuf[MAX(INET_ADDRSTRLEN, INET6_ADDRSTRLEN)];
            if (addr && (addr->sin_family == AF_INET || addr->sin_family == AF_INET6)) {
                NSString *name = [NSString stringWithUTF8String:interface->ifa_name];
                NSString *type;
                if (addr->sin_family == AF_INET) {
                    if (inet_ntop(AF_INET, &addr->sin_addr, addrBuf, INET_ADDRSTRLEN)) {
                        type = IP_ADDR_IPv4;
                    }
                } else {
                    const struct sockaddr_in6 *addr6 = (const struct sockaddr_in6 *) interface->ifa_addr;
                    if (inet_ntop(AF_INET6, &addr6->sin6_addr, addrBuf, INET6_ADDRSTRLEN)) {
                        type = IP_ADDR_IPv6;
                    }
                }
                if (type) {
                    NSString *key = [NSString stringWithFormat:@"%@/%@", name, type];
                    addresses[key] = [NSString stringWithUTF8String:addrBuf];
                }
            }
        }
        // Free memory
        freeifaddrs(interfaces);
    }
    return [addresses count] ? addresses : nil;
}

@end
